00001 #ifndef OMG_TDDS_CORE_INSTANCE_HANDLE_HPP_ 00002 #define OMG_TDDS_CORE_INSTANCE_HANDLE_HPP_ 00003 00004 /* Copyright 2010, Object Management Group, Inc. 00005 * Copyright 2010, PrismTech, Corp. 00006 * Copyright 2010, Real-Time Innovations, Inc. 00007 * All rights reserved. 00008 * 00009 * Licensed under the Apache License, Version 2.0 (the "License"); 00010 * you may not use this file except in compliance with the License. 00011 * You may obtain a copy of the License at 00012 * 00013 * http://www.apache.org/licenses/LICENSE-2.0 00014 * 00015 * Unless required by applicable law or agreed to in writing, software 00016 * distributed under the License is distributed on an "AS IS" BASIS, 00017 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00018 * See the License for the specific language governing permissions and 00019 * limitations under the License. 00020 */ 00021 00022 #include <dds/core/corefwd.hpp> 00023 #include <dds/core/Value.hpp> 00024 00025 00026 namespace tdds { namespace core { 00027 00028 template <typename DELEGATE> 00029 class InstanceHandle : public dds::core::Value<DELEGATE> { 00030 public: 00031 InstanceHandle() { } 00032 00033 InstanceHandle(const dds::core::null_type& src) 00034 : dds::core::Value<DELEGATE>(src) { } 00035 00036 ~InstanceHandle() { } 00037 00038 public: 00039 static const InstanceHandle nil() { 00040 return InstanceHandle(); 00041 } 00042 00043 bool operator==(const InstanceHandle& other) const { 00044 return this->delegate().operator==(other); 00045 } 00046 00047 InstanceHandle& operator=(const dds::core::null_type& src) { 00048 this->delegate()->operator=(src); 00049 } 00050 00051 bool operator==(const dds::core::null_type& other) const { 00052 return this->is_nil(); 00053 } 00054 00055 bool is_nil() const { 00056 return this->delegate()->is_nil(); 00057 } 00058 }; 00059 00060 } } 00061 00062 #endif // !defined(OMG_TDDS_CORE_INSTANCE_HANDLE_HPP_)
1.7.1